Medium severity · published Jul 27, 2024
CVE-2024-6520
Contact Form Plugin by Fluent Forms for Quiz, Survey, and Drag & Drop WP Form Builder <= 5.1.19 - Authenticated (Administrator+) Stored Cross-Site Scripting
4.4
CVSS
0.3%
EPSS
No
On KEV
Description
The Contact Form Plugin by Fluent Forms for Quiz, Survey, and Drag & Drop WP Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via custom error message in all versions up to, and including, 5.1.19 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
High
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FF
Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder · techjewel
through 5.1.19 · source: vendor
CF
Contact Form · Fluentforms
before 5.1.20 · source: NVD
WF
WP Form Builder · Web-dorado
through 5.1.19 · source: CISA
Affected product
FF
Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder
techjewel
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-6520
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-6520
Patch
https://plugins.trac.wordpress.org/changeset/3125227/
Release Notes
https://wordpress.org/plugins/fluentform/#developers
Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/0a30d35c-9883-4b0f-83a2-494401c45d8e?source=cve
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